New acylated polyesters of polyhydroxylated glycerol compounds useful in e.g. automobile and industrial lubricants, lubricating greases and lubricants for the transformation of metals and metallic works

摘要

Polyesters of polyhydroxylated glycerol compounds (A) (at least partially acylated) such as glycerol polycarbonates, polyglycerols, [(alpha -hydroxymethyl)oxyethylene/(alpha -hydroxymethyl)ethylene carbonates] copolymers, [(alpha -alkyl)oxyethylene/(alpha -alkyl)ethylene carbonates] copolymers and/or [(alpha -hydroxyalkyl)oxyethylene/(alpha -hydroxyalkyl)oxyethylene]copolymers are new. Polyesters of polyhydroxylated glycerol compounds (A) (at least partially acylated) such as glycerol polycarbonates of formula -[(H 2C-CH(CH 2-O-CO-R 1) k-(-H 2C-CH(H 2C-OH)-O-C(O)-O-) 1-k] m-, polyglycerols of formula -[(H 2C-CH(O-CO-R 2)-H 2C-O) k-(H 2C-CH(OH)-CH 2-O-) 1-k] n- and/or -[(H 2C-CH(CH 2-O-CO-R 3)-O) k-(H 2C-CH(CH 2-OH)-O-) 1-k] p-, [(alpha -hydroxymethyl)oxyethylene/(alpha -hydroxymethyl)ethylene carbonates] copolymers of formula -{[(CH 2-CH(CH 2-OH)-O) k] x-[(CH 2-CH(CH 2-O-CO-R 4)-O-CO-O) 1-k] y} q- and/or -{[(CH 2-CH(CH 2-O-CO-R 5)-O) k] x-[CH 2-CH(CH 2-OH)-O-CO-O) 1-k] y} q-, [(alpha -alkyl)oxyethylene/(alpha -alkyl)ethylene carbonates] copolymers of formula -{[(CH 2-CH(alkyl 1-OH)-O) k] z-[(CH 2-CH(alkyl 2-O-CO-R 6)-O-CO-O) 1-k] w} s- and/or -{[(CH 2-CH(alkyl 1-O-CO-R 7)-O) k] z-[(CH 2-CH(alkyl 2-OH)-O-CO-O) 1-k] w} s-, and/or [(alpha -hydroxyalkyl)oxyethylene/(alpha -hydroxyalkyl)oxyethylene]copolymers of formula -{[(CH 2-CH(alkyl 3)-O) k] a-[(CH 2-CH(alkyl 4-O-CO-R 8)-O) 1-k] b} u- and/or -{[(CH 2-CH(alkyl 4-O-CO-R 9)-O) k] a-[(CH 2-CH(alkyl 4)-O) 1-k] b} u- are new. R 1-R 91-43C hydrocarbon (optionally functionalized by hydroxyls and/or epoxy groups); k : acylation rate (0.01-1); a, b, u, m, x, y, z, w, s, q : =2 (preferably 2-100); n, p : =2 (preferably 2-150)); and alkyl 3, alkyl 4H or 1-4C hydrocarbon. Provided that at least one of alkyl 1 and alkyl 2 is 1-4C hydroxylated hydrocarbon (at least partially acylated and the other is H or 1-4C hydrocarbon. Independent claims are also included for the preparations of (I).